調用百度搜尋介面查詢

import java.net.*;import java.io.*;public class t {    public t() {    }    public static void main(String[] args) {        try {            String key = "java"; //查詢關鍵字            key = URLEncoder.encode(key, "gb2312");            URL u = new URL("http://www.baidu.com.cn/s?wd=" + key + "&cl=3");            URLConnection conn = u.openConnection();            BufferedReader reader = new BufferedReader(new InputStreamReader(                    conn.getInputStream(), "gb2312"));            String str = reader.readLine();            while (str != null) {                System.out.println(str);                str = reader.readLine();            }            reader.close();        } catch (Exception ex) {            ex.printStackTrace();        }    }}